Scraper.



-UNITED STATES PATENT oFFIoE. A

HlRA-M NOBLE, OF FULTON, AND CHARLES STEWART QUAYLE, OF

ROCK ISLAND, ILLINOIS.

SCRAPER- To all whom it may concern/:-

Be it known that we, HIRAM NOBLE, of

Fulton, in'the county of Whiteside, and

CHARLES STEWART QUAYLE, of Rock Island,

in the county of Rock Island, State of Illinois, have invented certainnew and useful Improvements in Scrapers, of which the following, whentaken in connection with'the drawings accompanying and forming a parthereof, is a full and complete description,

v sufficient to enable those skilled in the art to which it pertains tounderstand, make, and use the same. 1

This invention relates to devices used for making level surfaces,principally for making a level surface to hard-wood, floors, the samebeing applied after the floor is. laid, and the operation ofdevices ofthis character being to scrape and clean the floor in the levelingthereof. Machines of this kind may be used to levelother hard-woodsurfaces, as counters andthe like; and the object of this invention isto obtain a machine by means of whichthe necessity of hand-scraping afloor or other surface of considerable area'is obviated.

A further object of the invention is to obtain a machine of thecharacter named whereby uniform work may be done over the entire surfaceoperated upon when the machine view, on an enlarged scale, of a smallportion I of adjacent arts of the body part of the frame and t ebit-holder of the machine, which are hinged together, such parts being"separated to show the manner of making the hinges. I

A reference-letter applied to designate a given art is used to indicatesuch part throug out the several figures of the drawings wherever thesame appears. The. frame of this machine preferably consists of sidepieces A A and body-piece B, to

. which body-piece the respective side pieces are secured, as by screwsQ C O. The sides Specification of Letters Patent. Application filed May15,1906- ial NO- 316,965.

Patented Oct. 30,1906;

A A are respectively rovided with slotsD D, which are indicated ydottedlines in Fig. 2 and one thereof shown by full lines in Fig. 1.

E is a roller rotatably mounted on axle or shaft 6 in sides A A. Sides AA and roller E are preferably covered with rubber, felt, or othersuitable material.

The rotecting material to sides A A is lettered F and to the roller islettered G. It is 'not necessarily used, of course.

H is the bit-holder of the Inachineand is hinged at its lower end h tobody-piece B in the ordinary way of making a hinge. We prefer toconstruct the machine so that the screws C will serve as the pintle ofthe hinge in addition to serving, along with screws C C, to secure thesides to the body part. To do this, such screws 0 C are screw-threadedat the ends thereof, and the middle abutment of the part of the hingewhich is on body part B is provided with a hole having correspondingscrew-threads.

The position of the bit-holder H may be changed byturning it on itspintle C, and such bit-holder is held ri idly in an adjusted position bybolts I I, wl iich are ivoted at one end by pivots J J in lugs K on suchbit-holder and which pass, respectively, through apertures providedtherefor in body part B, in which body part such bolts are re-'spectively firmly secured by the thumbnuts L L.

We have found that considerable movement in the scraping edge of bit Mis very desirable, and we obtain such movement by constructing the bitof spring metal and interposing between such bit and the bitholder H therubber N or other elastic material insuch manner as tonot extend to thelower edge m of the bit.

0 is a pivoted plate provided with set or look bolts P P.

Q Q are lugs on bit-holder H, and q q is the pintle or pivot of plateO.Lugs Q Q, are respectively placed on the sides of the bit-holder H, soas to extend into the slits D D, and we thereby/ avoid cutting the bit Maway on the sides thereof. By this construction the bit M is quite freein a manner corresponding with the resilience of the material of whichthe bit is made to yield in the operation of the machine, in additiontohaving the movement which is due to the resilience of the interposedelastic materialN. We prefer to .ICO

use both the resiliency of the elastic material N (which may be springmetal) and of the bit, as last above described; but it will be readilyunderstood that the machine is operative if but one of the resilientbodies is used in the machine.

R is the handle of the machine and consists of spring part 1' andgrasping part 1".-

,with sufficient force to accomplish the desired result in the scrapingof the floor. At times the-roller E, which at all times in the operatingof-the machine acts as a weight, is raised entirely from the floor, atwhich times the cutting or scraping edge of the bit is the fulcrum onwhich the machine turns and by which such roller is maintained in araised position.

The cutting edge of the bit is lettered m. Bit-holder H is adjusted tothe proper angle relative to the surface which is to be operated upon,and when this is done it will be found that by simply drawing themachine over such surface a very level, smooth, and clean surface isobtained. 4

By the use of the coverings F F and G no injury is liable to be done tothe mop-boards or other vertical walls surrounding the surface operatedon when work is being done adjacent thereto, and by the construction ofthe machine as herembefore described, with the screw-heads of screws 0 Cand C countersunk, work can be done very closely to such mopboard orother wall.

By loosening lock-bolts P P the bit M may be withdrawn or its positionchanged. Bolts P P press against the bit M and press the lower edge n ofpivoted plate N against such bit, holding it firmly against elasticmaterial N and to bit-holder H.

It will be noted that by making the frame as herein illustrated anddescribed the weight placed on the scraping edge m of bit M in theoperation of the machine is, in addition to the weightof the roller E,so much of the weight or force of the operator as is required to beexerted or laid upon the handle R to force such handle down and to raisethe weight. It occurs that the Weight of roller E is not more thanone-half the Weight which would be required were the handle R notnecessarily forced downward in the operation of the machine. In additionto the advantage obtained as last above stated'in this construction,which permits the handle to be pressed downward, there is the additionaladvantage that the force of the operator is best exerted downward whendrawing the machine toward him in the operation thereof. By thisconstruction, too, the momentum of the machine is less than the samewould be were a roller employed of two or more times the weight of theroller used by us.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

' 1. In a machine forleveling hard-wood surfaces, the combination of aframe, a roller rotatably mounted in the frame, a handle to the frame,such handle comprising a spring part and a grasping part, and ascraping-bit in the frame, such bit arranged with the cutting edgethereof between the axis of the roller and the grasping part of thehandle so that when the free end of the handle is forced down thescraping edge of the bit constitutes a fulcrum on which the roller issupported; substantially as described.

2. In a machine for leveling hard-wood surfaces, the combination ofaframe, a roller rotatably mounted in the frame, a handle to the frame,such handle comprising a spring part and a grasping part, and ascraping-bit in the frame, such bit mounted on an ad ustable bit-holderso that the cutting edge of such bit is between the axis of the rollerand the grasping part of the handle and when such grasping part'isforced down the scraping edge of the bit constitutes a fulcrum on whichthe roller is supported; substantially as described.

3. In a machine for leveling hard-wood surfaces, the combination of aframe, a roller rotatably mounted in the frame, ahandle to the frame,such handle comprising a spring part and a grasping part, and such frameconsisting of a body part and sides secured thereto, a bit-holderadjustably mounted in the frame, means to maintain such holder in anadjusted position in the frame, a scraping-bit secured to the bit-holderan elastic body interposed between the bit and the bitholder, suchelastic body arranged so that the lower edge of the bit extends beyondthe lower edge of the elastic body, and such bit so mounted that thescraping edge thereof is between the axis of the roller and the graspingpart of the handle, so that when such grasping part is forced down thescraping edge of the bit constitutes a fulcrum on which the roller issupported; substantially as described.

4. In a machine for leveling hard-wood surfaces, the combination of aframe, a roller rotatably mounted in the frame, a handle to the frame,such handle comprising a spring part and a grasping part, such frameconsisting of a body part and sides secured to such body part,abit-holder ivotallymounted in the frame, bolts pivota ly secured to thebit-holder and extending through the body part of the frame, withthumb-nuts thereon to hold the screw rigidly in an adjusted position, anelastic body, a scraping-bit secured to the bit-holder with the elasticbody interposed between it and such bit-holder, such it so mounted thatthe scraping edge thereof is between the axis of the roller and thegrasping part of the handle, so that when such grasping part is forceddown the scraping edge of the bit constitutes a fulcrum on Which theroller is supported substantially as described.

5. In a machine for levelinghard-Wood surfaces, the combination of aframe provided with slots in the sides thereof, a handle to grasp tooperate'the machine, a flexible connection between the handle and theframe, a roller rotatably mounted in the frame, such frame and rollerrespectively provided 'With a covering of elastic material, a bitholderhinged at its lower end to, the frame, means to secure the upper end ofthe bitholder in a given position relative to the frame, lugs on thebit-holder movable in the slots in the frame, a plate pivotally attachedto the lugs, a set-screw in the plate, elastic material and a scrapin-bit, respectively in terposed between the it-holder and plate, suchelastic material and bit held in position by the tightenin of theset-screw in the plate; substantialfy as described.

HIRAM NOBLE. CHARLES STEWART QUAYLE.

In presence of- O. J. SEARLE,

RoBT. W. OLMSTED.

